debug chzzk login 4

2025-08-11 06:41:14 +00:00 · 2025-02-08 04:45:01 +09:00
19 changed files with 596 additions and 880 deletions
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -28,7 +28,7 @@ repositories {

 dependencies {
    // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
-    implementation("ch.qos.logback:logback-classic:1.5.13")
+    implementation("ch.qos.logback:logback-classic:1.5.12")

    // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
--- a/chatbot/build.gradle.kts
+++ b/chatbot/build.gradle.kts
@@ -16,10 +16,10 @@ dependencies {
    }

    // https://mvnrepository.com/artifact/io.github.R2turnTrue/chzzk4j
-    implementation("io.github.R2turnTrue:chzzk4j:0.1.1")
+    implementation("io.github.R2turnTrue:chzzk4j:0.0.12")

    // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
-    implementation("ch.qos.logback:logback-classic:1.5.13")
+    implementation("ch.qos.logback:logback-classic:1.5.12")

    // https://mvnrepository.com/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0")
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/ChzzkHandler.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/ChzzkHandler.kt
@@ -1,34 +1,29 @@
 package space.mori.chzzk_bot.chatbot.chzzk

 import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.future.await
 import kotlinx.coroutines.launch
 import org.koin.java.KoinJavaComponent.inject
 import org.slf4j.Logger
 import org.slf4j.LoggerFactory
+import space.mori.chzzk_bot.chatbot.chzzk.Connector.chzzk
 import space.mori.chzzk_bot.chatbot.chzzk.Connector.getChannel
 import space.mori.chzzk_bot.chatbot.discord.Discord
-import space.mori.chzzk_bot.chatbot.utils.refreshAccessToken
 import space.mori.chzzk_bot.common.events.*
 import space.mori.chzzk_bot.common.models.User
 import space.mori.chzzk_bot.common.services.LiveStatusService
 import space.mori.chzzk_bot.common.services.TimerConfigService
 import space.mori.chzzk_bot.common.services.UserService
 import space.mori.chzzk_bot.common.utils.*
-import xyz.r2turntrue.chzzk4j.ChzzkClient
-import xyz.r2turntrue.chzzk4j.session.ChzzkSessionBuilder
-import xyz.r2turntrue.chzzk4j.session.ChzzkSessionSubscriptionType
-import xyz.r2turntrue.chzzk4j.session.ChzzkUserSession
-import xyz.r2turntrue.chzzk4j.session.event.SessionChatMessageEvent
+import xyz.r2turntrue.chzzk4j.chat.ChatEventListener
+import xyz.r2turntrue.chzzk4j.chat.ChatMessage
+import xyz.r2turntrue.chzzk4j.chat.ChzzkChat
 import xyz.r2turntrue.chzzk4j.types.channel.ChzzkChannel
-import xyz.r2turntrue.chzzk4j.types.channel.live.ChzzkLiveDetail
 import java.lang.Exception
 import java.net.SocketTimeoutException
 import java.time.LocalDateTime
-import java.nio.charset.Charset

 object ChzzkHandler {
    private val handlers = mutableListOf<UserHandler>()
@@ -38,23 +33,19 @@ object ChzzkHandler {
    private val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)

    fun addUser(chzzkChannel: ChzzkChannel, user: User) {
-        handlers.add(UserHandler(chzzkChannel, logger, user, streamStartTime = LocalDateTime.now()))
+        handlers.add(UserHandler(chzzkChannel, logger, user, streamStartTime = null))
    }

    fun enable() {
-        botUid = Connector.client.fetchLoggedUser().userId
+        botUid = chzzk.loggedUser.userId
        UserService.getAllUsers().map {
            if(!it.isDisabled)
-                try {
-                    Connector.getChannel(it.token)?.let { token -> addUser(token, it) }
-                } catch(e: Exception) {
-                    logger.info("Exception: ${it.token}(${it.username}) not found. ${e.stackTraceToString()}")
-                }
+                chzzk.getChannel(it.token)?.let { token -> addUser(token, it) }
        }

        handlers.forEach { handler ->
-            val streamInfo = Connector.getLive(handler.channel.channelId)
-            if (streamInfo?.isOnline == true) handler.isActive(true, streamInfo)
+            val streamInfo = getStreamInfo(handler.listener.channelId)
+            if (streamInfo.content?.status == "OPEN") handler.isActive(true, streamInfo)
        }

        dispatcher.subscribe(UserRegisterEvent::class) {
@@ -113,15 +104,15 @@ object ChzzkHandler {
                handlers.forEach {
                    if (!running) return@forEach
                    try {
-                        val streamInfo = Connector.getLive(it.channel.channelId)
-                        if (streamInfo?.isOnline == true && !it.isActive) {
+                        val streamInfo = getStreamInfo(it.channel.channelId)
+                        if (streamInfo.content?.status == "OPEN" && !it.isActive) {
                            try {
                                it.isActive(true, streamInfo)
                            } catch(e: Exception) {
                                logger.info("Exception: ${e.stackTraceToString()}")
                            }
                        }
-                        if (streamInfo?.isOnline == false && it.isActive) it.isActive(false, streamInfo)
+                        if (streamInfo.content?.status == "CLOSE" && it.isActive) it.isActive(false, streamInfo)
                    } catch (e: SocketTimeoutException) {
                        logger.info("Thread 1 Timeout: ${it.channel.channelName} / ${e.stackTraceToString()}")
                    } catch (e: Exception) {
@@ -141,19 +132,19 @@ object ChzzkHandler {
                handlers.forEach {
                    if (!running) return@forEach
                    try {
-                        val streamInfo = Connector.getLive(it.channel.channelId)
-                        if (streamInfo?.isOnline == true && !it.isActive) {
+                        val streamInfo = getStreamInfo(it.channel.channelId)
+                        if (streamInfo.content?.status == "OPEN" && !it.isActive) {
                            try {
                                it.isActive(true, streamInfo)
                            } catch(e: Exception) {
                                logger.info("Exception: ${e.stackTraceToString()}")
                            }
                        }
-                        if (streamInfo?.isOnline == false && it.isActive) it.isActive(false, streamInfo)
+                        if (streamInfo.content?.status == "CLOSE" && it.isActive) it.isActive(false, streamInfo)
                    } catch (e: SocketTimeoutException) {
-                        logger.info("Thread 1 Timeout: ${it.channel.channelName} / ${e.stackTraceToString()}")
+                        logger.info("Thread 2 Timeout: ${it.channel.channelName} / ${e.stackTraceToString()}")
                    } catch (e: Exception) {
-                        logger.info("Thread 1 Exception: ${it.channel.channelName} / ${e.stackTraceToString()}")
+                        logger.info("Thread 2 Exception: ${it.channel.channelName} / ${e.stackTraceToString()}")
                    } finally {
                        Thread.sleep(5000)
                    }
@@ -197,7 +188,6 @@ object ChzzkHandler {
    }
 }

-@OptIn(DelicateCoroutinesApi::class)
 class UserHandler(
    val channel: ChzzkChannel,
    val logger: Logger,
@@ -205,9 +195,7 @@ class UserHandler(
    var streamStartTime: LocalDateTime?,
 ) {
    var messageHandler: MessageHandler
-    var client: ChzzkClient
-    var listener: ChzzkUserSession
-    var chatChannelId: String?
+    var listener: ChzzkChat

    private val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
    private var _isActive: Boolean
@@ -217,57 +205,35 @@ class UserHandler(
        }

    init {
-        val user = UserService.getUser(channel.channelId)
+        listener = chzzk.chat(channel.channelId)
+            .withAutoReconnect(true)
+            .withChatListener(object : ChatEventListener {
+                override fun onConnect(chat: ChzzkChat, isReconnecting: Boolean) {
+                    logger.info("${channel.channelName} - ${channel.channelId} / reconnected: $isReconnecting")
+                }

-        if(user?.accessToken == null || user.refreshToken == null) {
-            throw RuntimeException("AccessToken or RefreshToken is not valid.")
-        }
-        try {
-            val tokens = user.refreshToken?.let { token -> Connector.client.refreshAccessToken(token) }
-            if(tokens == null) {
-                throw RuntimeException("AccessToken is not valid.")
-            }
-            client = Connector.getClient(tokens.first, tokens.second)
-            UserService.setRefreshToken(user, tokens.first, tokens.second)
-            chatChannelId = getChzzkChannelId(channel.channelId)
+                override fun onError(ex: Exception) {
+                    logger.info("ChzzkChat error. ${channel.channelName} - ${channel.channelId}")
+                    logger.info(ex.stackTraceToString())
+                }

-            client.loginAsync().join()
-            listener = ChzzkSessionBuilder(client).buildUserSession()
-            listener.createAndConnectAsync().join()
-            messageHandler = MessageHandler(this@UserHandler)
+                override fun onChat(msg: ChatMessage) {
+                    if(!_isActive) return
+                    messageHandler.handle(msg, user)
+                }

-            listener.on(SessionChatMessageEvent::class.java) {
-                messageHandler.handle(it.message, user)
-            }
-
-            GlobalScope.launch {
-                val timer = TimerConfigService.getConfig(user)
-                if (timer?.option == TimerType.UPTIME.value)
-                    dispatcher.post(
-                        TimerEvent(
-                            channel.channelId,
-                            TimerType.UPTIME,
-                            getUptime(streamStartTime!!)
-                        )
-                    )
-                else dispatcher.post(
-                    TimerEvent(
-                        channel.channelId,
-                        TimerType.entries.firstOrNull { it.value == timer?.option } ?: TimerType.REMOVE,
-                        null
-                    )
-                )
-            }
-            
-        } catch(e: Exception) {
-            logger.error("Exception(${user.username}): ${e.stackTraceToString()}")
-            throw RuntimeException("Exception: ${e.stackTraceToString()}")
-        }
+                override fun onConnectionClosed(code: Int, reason: String?, remote: Boolean, tryingToReconnect: Boolean) {
+                    logger.info("ChzzkChat closed. ${channel.channelName} - ${channel.channelId}")
+                    logger.info("Reason: $reason / $tryingToReconnect")
+                }
+            })
+            .build()
+        messageHandler = MessageHandler(this@UserHandler)
    }

+
    internal fun disable() {
-        listener.disconnectAsync().join()
-        _isActive = false
+        listener.closeAsync()
    }

    internal fun reloadCommand() {
@@ -281,7 +247,7 @@ class UserHandler(
    internal val isActive: Boolean
        get() = _isActive

-    internal fun isActive(value: Boolean, status: ChzzkLiveDetail) {
+    internal fun isActive(value: Boolean, status: IData<IStreamInfo?>) {
        if(value) {
            CoroutineScope(Dispatchers.Default).launch {
                logger.info("${user.username} is live.")
@@ -289,9 +255,9 @@ class UserHandler(
                reloadUser(UserService.getUser(user.id.value)!!)

                logger.info("ChzzkChat connecting... ${channel.channelName} - ${channel.channelId}")
-                listener.subscribeAsync(ChzzkSessionSubscriptionType.CHAT).join()
+                listener.connectAsync().await()

-                streamStartTime = LocalDateTime.now()
+                streamStartTime = status.content?.openDate?.let { convertChzzkDateToLocalDateTime(it) }

                if(!_isActive) {
                    _isActive = true
@@ -315,7 +281,7 @@ class UserHandler(
                    delay(5000L)
                    try {
                        if(!user.isDisableStartupMsg)
-                            sendChat("${user.username} 님! 오늘도 열심히 방송하세요!")
+                            listener.sendChat("${user.username} 님! 오늘도 열심히 방송하세요!")
                        Discord.sendDiscord(user, status)
                    } catch(e: Exception) {
                        logger.info("Stream on logic has some error: ${e.stackTraceToString()}")
@@ -325,7 +291,7 @@ class UserHandler(
        } else {
            logger.info("${user.username} is offline.")
            streamStartTime = null
-            listener.disconnectAsync().join()
+            listener.closeAsync()
            _isActive = false

            CoroutineScope(Dispatchers.Default).launch {
@@ -349,22 +315,4 @@ class UserHandler(
            }
        }
    }
-
-    private fun String.limitUtf8Length(maxBytes: Int): String {
-        val bytes = this.toByteArray(Charset.forName("UTF-8"))
-        if (bytes.size <= maxBytes) return this
-        var truncatedString = this
-        while (truncatedString.toByteArray(Charset.forName("UTF-8")).size > maxBytes) {
-            truncatedString = truncatedString.substring(0, truncatedString.length - 1)
-        }
-        return truncatedString
-    }
-
-    @OptIn(DelicateCoroutinesApi::class)
-    internal fun sendChat(msg: String) {
-        GlobalScope.launch {
-            delay(100L)
-            client.sendChatToLoggedInChannel(msg.limitUtf8Length(100))
-        }
-    }
-}
+}
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/Connector.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/Connector.kt
@@ -1,66 +1,24 @@
 package space.mori.chzzk_bot.chatbot.chzzk

 import io.github.cdimascio.dotenv.dotenv
-import kotlinx.coroutines.DelicateCoroutinesApi
-import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.launch
-import org.koin.java.KoinJavaComponent.inject
 import org.slf4j.LoggerFactory
-import space.mori.chzzk_bot.common.events.ChzzkUserFindEvent
-import space.mori.chzzk_bot.common.events.ChzzkUserReceiveEvent
-import space.mori.chzzk_bot.common.events.CoroutinesEventBus
-import xyz.r2turntrue.chzzk4j.ChzzkClient
-import xyz.r2turntrue.chzzk4j.ChzzkClientBuilder
-import xyz.r2turntrue.chzzk4j.auth.ChzzkLegacyLoginAdapter
-import xyz.r2turntrue.chzzk4j.auth.ChzzkSimpleUserLoginAdapter
+import xyz.r2turntrue.chzzk4j.Chzzk
+import xyz.r2turntrue.chzzk4j.ChzzkBuilder
 import xyz.r2turntrue.chzzk4j.types.channel.ChzzkChannel
-import xyz.r2turntrue.chzzk4j.types.channel.live.ChzzkLiveDetail
-import kotlin.getValue

 val dotenv = dotenv {
    ignoreIfMissing = true
 }

-@OptIn(DelicateCoroutinesApi::class)
 object Connector {
-    val adapter = ChzzkLegacyLoginAdapter(dotenv["NID_AUT"], dotenv["NID_SES"])
-    val client: ChzzkClient = ChzzkClientBuilder(dotenv["NAVER_CLIENT_ID"], dotenv["NAVER_CLIENT_SECRET"])
-        .withLoginAdapter(adapter)
+    val chzzk: Chzzk = ChzzkBuilder()
+        .withAuthorization(dotenv["NID_AUT"], dotenv["NID_SES"])
        .build()
    private val logger = LoggerFactory.getLogger(this::class.java)
-    private val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)

-    fun getChannel(channelId: String): ChzzkChannel? = client.fetchChannel(channelId)
-    fun getLive(channelId: String): ChzzkLiveDetail? = client.fetchLiveDetail(channelId)
+    fun getChannel(channelId: String): ChzzkChannel? = chzzk.getChannel(channelId)

    init {
-        logger.info("chzzk logged: ${client.isLoggedIn}")
-
-        client.loginAsync().join()
-
-        dispatcher.subscribe(ChzzkUserFindEvent::class) { event ->
-            GlobalScope.launch {
-                val user = getChannel(event.uid)
-
-                dispatcher.post(ChzzkUserReceiveEvent(
-                    find = user != null,
-                    uid = user?.channelId,
-                    nickname = user?.channelName,
-                    isStreamOn = user?.isBroadcasting,
-                    avatarUrl = user?.channelImageUrl
-                ))
-            }
-        }
+        logger.info("chzzk logged: ${chzzk.isLoggedIn} / ${chzzk.loggedUser?.nickname ?: "----"}")
    }
-
-    fun getClient(accessToken: String, refreshToken: String): ChzzkClient {
-        val adapter = ChzzkSimpleUserLoginAdapter(accessToken, refreshToken)
-        val client = ChzzkClientBuilder(dotenv["NAVER_CLIENT_ID"], dotenv["NAVER_CLIENT_SECRET"])
-            .withLoginAdapter(adapter)
-            .build()
-
-        return client
-    }
-
-
 }
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/MessageHandler.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/chzzk/MessageHandler.kt
@@ -13,16 +13,15 @@ import space.mori.chzzk_bot.common.utils.getUptime
 import space.mori.chzzk_bot.common.utils.getYoutubeVideo
 import xyz.r2turntrue.chzzk4j.chat.ChatMessage
 import xyz.r2turntrue.chzzk4j.chat.ChzzkChat
-import xyz.r2turntrue.chzzk4j.session.ChzzkUserSession
-import xyz.r2turntrue.chzzk4j.session.message.SessionChatMessage
 import java.time.LocalDateTime
 import java.time.format.DateTimeFormatter
 import java.time.temporal.ChronoUnit

+
 class MessageHandler(
    private val handler: UserHandler
 ) {
-    private val commands = mutableMapOf<String, (msg: SessionChatMessage, user: User) -> Unit>()
+    private val commands = mutableMapOf<String, (msg: ChatMessage, user: User) -> Unit>()

    private val counterPattern = Regex("<counter:([^>]+)>")
    private val personalCounterPattern = Regex("<counter_personal:([^>]+)>")
@@ -72,90 +71,85 @@ class MessageHandler(
            this.commands.put(it.command.lowercase()) { msg, user ->
                logger.debug("${channel.channelName} - ${it.command} - ${it.content}/${it.failContent}")

-                val result = replaceCounters(
-                    Pair(it.content, it.failContent),
-                    user,
-                    msg,
-                    msg.profile?.nickname ?: ""
-                )
-                handler.sendChat(result)
+                val result = replaceCounters(Pair(it.content, it.failContent), user, msg, listener, msg.profile?.nickname ?: "")
+                listener.sendChat(result)
            }
        }
    }

-    private fun commandListCommand(msg: SessionChatMessage, user: User) {
-        handler.sendChat("리스트는 여기입니다. https://nabot.mori.space/commands/${user.token}")
+    private fun commandListCommand(msg: ChatMessage, user: User) {
+        listener.sendChat("리스트는 여기입니다. https://nabot.mori.space/commands/${user.token}")
    }

-    private fun manageAddCommand(msg: SessionChatMessage, user: User) {
-        if (msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 명령어를 추가할 수 있습니다.")
+    private fun manageAddCommand(msg: ChatMessage, user: User) {
+        if (msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 명령어를 추가할 수 있습니다.")
            return
        }

        val parts = msg.content.split(" ", limit = 3)
        if (parts.size < 3) {
-            handler.sendChat("명령어 추가 형식은 '!명령어추가 명령어 내용'입니다.")
+            listener.sendChat("명령어 추가 형식은 '!명령어추가 명령어 내용'입니다.")
            return
        }
        if (commands.containsKey(parts[1])) {
-            handler.sendChat("${parts[1]} 명령어는 이미 있는 명령어입니다.")
+            listener.sendChat("${parts[1]} 명령어는 이미 있는 명령어입니다.")
            return
        }
        val command = parts[1]
        val content = parts[2]
        CommandService.saveCommand(user, command, content, "")
-        handler.sendChat("명령어 '$command' 추가되었습니다.")
+        listener.sendChat("명령어 '$command' 추가되었습니다.")
    }

-    private fun manageUpdateCommand(msg: SessionChatMessage, user: User) {
-        if (msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 명령어를 추가할 수 있습니다.")
+    private fun manageUpdateCommand(msg: ChatMessage, user: User) {
+        if (msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 명령어를 추가할 수 있습니다.")
            return
        }

        val parts = msg.content.split(" ", limit = 3)
        if (parts.size < 3) {
-            handler.sendChat("명령어 수정 형식은 '!명령어수정 명령어 내용'입니다.")
+            listener.sendChat("명령어 수정 형식은 '!명령어수정 명령어 내용'입니다.")
            return
        }
        if (!commands.containsKey(parts[1])) {
-            handler.sendChat("${parts[1]} 명령어는 없는 명령어입니다.")
+            listener.sendChat("${parts[1]} 명령어는 없는 명령어입니다.")
            return
        }
        val command = parts[1]
        val content = parts[2]
        CommandService.updateCommand(user, command, content, "")
-        handler.sendChat("명령어 '$command' 수정되었습니다.")
+        listener.sendChat("명령어 '$command' 수정되었습니다.")
        ChzzkHandler.reloadCommand(channel)
    }

-    private fun manageRemoveCommand(msg: SessionChatMessage, user: User) {
-        if (msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 명령어를 삭제할 수 있습니다.")
+    private fun manageRemoveCommand(msg: ChatMessage, user: User) {
+        if (msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 명령어를 삭제할 수 있습니다.")
            return
        }

        val parts = msg.content.split(" ", limit = 2)
        if (parts.size < 2) {
-            handler.sendChat("명령어 삭제 형식은 '!명령어삭제 명령어'입니다.")
+            listener.sendChat("명령어 삭제 형식은 '!명령어삭제 명령어'입니다.")
            return
        }
        val command = parts[1]
        CommandService.removeCommand(user, command)
-        handler.sendChat("명령어 '$command' 삭제되었습니다.")
+        listener.sendChat("명령어 '$command' 삭제되었습니다.")
        ChzzkHandler.reloadCommand(channel)
    }

-    private fun timerCommand(msg: SessionChatMessage, user: User) {
-        if (msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
+    private fun timerCommand(msg: ChatMessage, user: User) {
+        if (msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
            return
        }

        val parts = msg.content.split(" ", limit = 3)
        if (parts.size < 2) {
-            handler.sendChat("타이머 명령어 형식을 잘 찾아봐주세요!")
+            listener.sendChat("타이머 명령어 형식을 잘 찾아봐주세요!")
            return
        }

@@ -184,13 +178,13 @@ class MessageHandler(
                when (parts[2]) {
                    "업타임" -> {
                        TimerConfigService.saveOrUpdateConfig(user, TimerType.UPTIME)
-                        handler.sendChat("기본 타이머 설정이 업타임으로 바뀌었습니다.")
+                        listener.sendChat("기본 타이머 설정이 업타임으로 바뀌었습니다.")
                    }
                    "삭제" -> {
                        TimerConfigService.saveOrUpdateConfig(user, TimerType.REMOVE)
-                        handler.sendChat("기본 타이머 설정이 삭제로 바뀌었습니다.")
+                        listener.sendChat("기본 타이머 설정이 삭제로 바뀌었습니다.")
                    }
-                    else -> handler.sendChat("!타이머 설정 (업타임/삭제) 형식으로 써주세요!")
+                    else -> listener.sendChat("!타이머 설정 (업타임/삭제) 형식으로 써주세요!")
                }
            }
            else -> {
@@ -204,9 +198,9 @@ class MessageHandler(
                        dispatcher.post(TimerEvent(user.token, TimerType.TIMER, timestamp.toString()))
                    }
                } catch (e: NumberFormatException) {
-                    handler.sendChat("!타이머/숫자 형식으로 적어주세요! 단위: 분")
+                    listener.sendChat("!타이머/숫자 형식으로 적어주세요! 단위: 분")
                } catch (e: Exception) {
-                    handler.sendChat("타이머 설정 중 오류가 발생했습니다.")
+                    listener.sendChat("타이머 설정 중 오류가 발생했습니다.")
                    logger.error("Error processing timer command: ${e.message}", e)
                }
            }
@@ -214,21 +208,21 @@ class MessageHandler(
    }

    // songs
-    private fun songAddCommand(msg: SessionChatMessage, user: User) {
+    private fun songAddCommand(msg: ChatMessage, user: User) {
        if(SongConfigService.getConfig(user).disabled) {
            return
        }

        val parts = msg.content.split(" ", limit = 2)
        if (parts.size < 2) {
-            handler.sendChat("유튜브 URL을 입력해주세요!")
+            listener.sendChat("유튜브 URL을 입력해주세요!")
            return
        }

        val config = SongConfigService.getConfig(user)

-        if(config.streamerOnly && msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
+        if(config.streamerOnly && msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
            return
        }

@@ -236,34 +230,34 @@ class MessageHandler(
        val songs = SongListService.getSong(user)

        if(songs.size >= config.queueLimit) {
-            handler.sendChat("더이상 노래를 신청할 수 없습니다. 잠시 뒤 다시 시도해주세요!")
+            listener.sendChat("더이상 노래를 신청할 수 없습니다. 잠시 뒤 다시 시도해주세요!")
            return
        }
-        if(songs.filter { it.uid == msg.senderChannelId }.size  >= config.personalLimit) {
-            handler.sendChat("더이상 노래를 신청할 수 없습니다. 잠시 뒤 다시 시도해주세요!")
+        if(songs.filter { it.uid == msg.userId }.size  >= config.personalLimit) {
+            listener.sendChat("더이상 노래를 신청할 수 없습니다. 잠시 뒤 다시 시도해주세요!")
            return
        }

        try {
            val video = getYoutubeVideo(url)
            if (video == null) {
-                handler.sendChat("유튜브에서 찾을 수 없어요!")
+                listener.sendChat("유튜브에서 찾을 수 없어요!")
                return
            }

            if (songs.any { it.url == video.url }) {
-                handler.sendChat("같은 노래가 이미 신청되어 있습니다.")
+                listener.sendChat("같은 노래가 이미 신청되어 있습니다.")
                return
            }

            if (video.length > 600) {
-                handler.sendChat("10분이 넘는 노래는 신청할 수 없습니다.")
+                listener.sendChat("10분이 넘는 노래는 신청할 수 없습니다.")
                return
            }

            SongListService.saveSong(
                user,
-                msg.senderChannelId,
+                msg.userId,
                video.url,
                video.name,
                video.author,
@@ -275,31 +269,31 @@ class MessageHandler(
                    SongEvent(
                        user.token,
                        SongType.ADD,
-                        msg.senderChannelId,
+                        msg.userId,
                        null,
                        video,
                    )
                )
            }

-            handler.sendChat("노래가 추가되었습니다. ${video.name} - ${video.author}")
+            listener.sendChat("노래가 추가되었습니다. ${video.name} - ${video.author}")
        } catch(e: Exception) {
-            handler.sendChat("유튜브 영상 주소로 다시 신청해주세요!")
+            listener.sendChat("유튜브 영상 주소로 다시 신청해주세요!")
            logger.info(e.stackTraceToString())
        }
    }

-    private fun songListCommand(msg: SessionChatMessage, user: User) {
+    private fun songListCommand(msg: ChatMessage, user: User) {
        if(SongConfigService.getConfig(user).disabled) {
            return
        }
        
-        handler.sendChat("리스트는 여기입니다. https://nabot.mori.space/songs/${user.token}")
+        listener.sendChat("리스트는 여기입니다. https://nabot.mori.space/songs/${user.token}")
    }

-    private fun songStartCommand(msg: SessionChatMessage, user: User) {
-        if (msg.profile.badges.none { it.imageUrl.contains("manager") }) {
-            handler.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
+    private fun songStartCommand(msg: ChatMessage, user: User) {
+        if (msg.profile?.userRoleCode == "common_user") {
+            listener.sendChat("매니저만 이 명령어를 사용할 수 있습니다.")
            return
        }

@@ -312,28 +306,28 @@ class MessageHandler(
                }
            }
        } else {
-            handler.sendChat("나봇 홈페이지의 노래목록 페이지를 이용해주세요! 디스코드 연동을 하시면 DM으로 바로 전송됩니다.")
+            listener.sendChat("나봇 홈페이지의 노래목록 페이지를 이용해주세요! 디스코드 연동을 하시면 DM으로 바로 전송됩니다.")
        }
    }

-    internal fun handle(msg: SessionChatMessage, user: User) {
-        if(msg.senderChannelId == ChzzkHandler.botUid) return
+    internal fun handle(msg: ChatMessage, user: User) {
+        if(msg.userId == ChzzkHandler.botUid) return

        val commandKey = msg.content.split(' ')[0]
        commands[commandKey.lowercase()]?.let { it(msg, user) }
    }

-    private fun replaceCounters(chat: Pair<String, String>, user: User, msg: SessionChatMessage, userName: String): String {
+    private fun replaceCounters(chat: Pair<String, String>, user: User, msg: ChatMessage, listener: ChzzkChat, userName: String): String {
        var result = chat.first
        var isFail = false

        // Replace dailyCounterPattern
        result = dailyCounterPattern.replace(result) { matchResult ->
            val name = matchResult.groupValues[1]
-            val dailyCounter = CounterService.getDailyCounterValue(name, msg.senderChannelId, user)
+            val dailyCounter = CounterService.getDailyCounterValue(name, msg.userId, user)

            if (dailyCounter.second) {
-                CounterService.updateDailyCounterValue(name, msg.senderChannelId, 1, user).first.toString()
+                CounterService.updateDailyCounterValue(name, msg.userId, 1, user).first.toString()
            } else {
                isFail = true
                dailyCounter.first.toString()
@@ -345,7 +339,7 @@ class MessageHandler(
            result = chat.second
            result = dailyCounterPattern.replace(result) { matchResult ->
                val name = matchResult.groupValues[1]
-                val dailyCounter = CounterService.getDailyCounterValue(name, msg.senderChannelId, user)
+                val dailyCounter = CounterService.getDailyCounterValue(name, msg.userId, user)
                dailyCounter.first.toString()
            }
        }
@@ -353,15 +347,15 @@ class MessageHandler(
        // Replace followPattern
        result = followPattern.replace(result) { _ ->
            try {
-                val followingDate = handler.chatChannelId?.let { getFollowDate(it, msg.senderChannelId) }
-                    ?.content?.streamingProperty?.following?.followDate ?: LocalDateTime.now().minusDays(1).toString()
+                val followingDate = getFollowDate(listener.chatId, msg.userId)
+                    .content?.streamingProperty?.following?.followDate

-                val period = followingDate.let {
+                val period = followingDate?.let {
                    val formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")
                    val pastDate = LocalDateTime.parse(it, formatter)
                    val today = LocalDateTime.now()
                    ChronoUnit.DAYS.between(pastDate, today)
-                } + 1
+                } ?: 0

                period.toString()
            } catch (e: Exception) {
@@ -389,7 +383,7 @@ class MessageHandler(
        // Replace personalCounterPattern
        result = personalCounterPattern.replace(result) { matchResult ->
            val name = matchResult.groupValues[1]
-            CounterService.updatePersonalCounterValue(name, msg.senderChannelId, 1, user).toString()
+            CounterService.updatePersonalCounterValue(name, msg.userId, 1, user).toString()
        }

        // Replace namePattern
@@ -397,4 +391,5 @@ class MessageHandler(

        return result
    }
-}
+
+}
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/Discord.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/discord/Discord.kt
@@ -12,12 +12,11 @@ import net.dv8tion.jda.api.events.interaction.command.SlashCommandInteractionEve
 import net.dv8tion.jda.api.hooks.ListenerAdapter
 import net.dv8tion.jda.api.utils.messages.MessageCreateBuilder
 import org.slf4j.LoggerFactory
+import space.mori.chzzk_bot.common.utils.IData
+import space.mori.chzzk_bot.common.utils.IStreamInfo
 import space.mori.chzzk_bot.chatbot.discord.commands.*
 import space.mori.chzzk_bot.common.models.User
-import xyz.r2turntrue.chzzk4j.types.channel.live.ChzzkLiveDetail
-import xyz.r2turntrue.chzzk4j.types.channel.live.Resolution
 import java.time.Instant
-import kotlin.jvm.optionals.getOrNull

 val dotenv = dotenv {
    ignoreIfMissing = true
@@ -34,26 +33,20 @@ class Discord: ListenerAdapter() {
            return bot.getGuildById(guildId)?.getTextChannelById(channelId)
        }

-        fun sendDiscord(user: User, status: ChzzkLiveDetail) {
+        fun sendDiscord(user: User, status: IData<IStreamInfo?>) {
+            if(status.content == null) return
            if(user.liveAlertMessage != null && user.liveAlertGuild != null && user.liveAlertChannel != null) {
                val channel = getChannel(user.liveAlertGuild ?: 0, user.liveAlertChannel ?: 0)
                    ?: throw RuntimeException("${user.liveAlertChannel} is not valid.")

                val embed = EmbedBuilder()
-                embed.setTitle(status.title, "https://chzzk.naver.com/live/${user.token}")
+                embed.setTitle(status.content!!.liveTitle, "https://chzzk.naver.com/live/${user.token}")
                embed.setDescription("${user.username} 님이 방송을 시작했습니다.")
                embed.setTimestamp(Instant.now())
-                embed.setAuthor(user.username, "https://chzzk.naver.com/live/${user.token}")
-                embed.addField("카테고리", status.liveCategoryValue, true)
-                embed.addField("태그", status.tags.joinToString(", ") { it.trim() }, true)
-                status.defaultThumbnailImageUrl.getOrNull()?.let { embed.setImage(it) }
-                    ?: Resolution.entries.reversed().forEach {
-                        val thumbnail = status.getLiveImageUrl(it)
-                        if (thumbnail != null) {
-                            embed.setImage(thumbnail)
-                            return@forEach
-                        }
-                    }
+                embed.setAuthor(user.username, "https://chzzk.naver.com/live/${user.token}", status.content!!.channel.channelImageUrl)
+                embed.addField("카테고리", status.content!!.liveCategoryValue, true)
+                embed.addField("태그", status.content!!.tags.joinToString(", "), true)
+                embed.setImage(status.content!!.liveImageUrl.replace("{type}", "1080"))

                channel.sendMessage(
                    MessageCreateBuilder()
--- a/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/utils/accessTokenRefresh.kt
+++ b/chatbot/src/main/kotlin/space/mori/chzzk_bot/chatbot/utils/accessTokenRefresh.kt
@@ -1,58 +0,0 @@
-package space.mori.chzzk_bot.chatbot.utils
-
-import com.google.gson.Gson
-import okhttp3.MediaType
-import okhttp3.MediaType.Companion.toMediaType
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.RequestBody.Companion.toRequestBody
-import space.mori.chzzk_bot.chatbot.chzzk.dotenv
-import space.mori.chzzk_bot.common.utils.client
-import xyz.r2turntrue.chzzk4j.ChzzkClient
-import java.io.IOException
-
-val client = OkHttpClient.Builder()
-    .addNetworkInterceptor { chain ->
-        chain.proceed(
-            chain.request()
-                .newBuilder()
-                .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36")
-                .build()
-        )
-    }
-    .build()
-val gson = Gson()
-
-data class RefreshTokenResponse(
-    val accessToken: String,
-    val refreshToken: String,
-    val expiresIn: Int,
-    val tokenType: String = "Bearer",
-    val scope: String
-)
-
-fun ChzzkClient.refreshAccessToken(refreshToken: String): Pair<String, String> {
-    val url = "https://openapi.chzzk.naver.com/auth/v1/token"
-    val request = Request.Builder()
-        .url(url)
-        .header("Content-Type", "application/json")
-        .post(gson.toJson(mapOf(
-            "grantType" to "refresh_token",
-            "refreshToken" to refreshToken,
-            "clientId" to dotenv["NAVER_CLIENT_ID"],
-            "clientSecret" to dotenv["NAVER_CLIENT_SECRET"]
-        )).toRequestBody("application/json; charset=utf-8".toMediaType()))
-        .build()
-
-    client.newCall(request).execute().use { response ->
-        try {
-            if(!response.isSuccessful) throw IOException("Unexpected code ${response.code}")
-            val body = response.body?.string()
-            val data = gson.fromJson(body, RefreshTokenResponse::class.java)
-
-            return Pair(data.accessToken, data.refreshToken)
-        } catch(e: Exception) {
-            throw e
-        }
-    }
-}
--- a/common/build.gradle.kts
+++ b/common/build.gradle.kts
@@ -23,7 +23,7 @@ dependencies {
    api("com.zaxxer:HikariCP:6.1.0")

    // https://mvnrepository.com/artifact/ch.qos.logback/logback-classic
-    implementation("ch.qos.logback:logback-classic:1.5.13")
+    implementation("ch.qos.logback:logback-classic:1.5.12")

    // https://mvnrepository.com/artifact/org.mariadb.jdbc/mariadb-java-client
    implementation("org.mariadb.jdbc:mariadb-java-client:3.5.0")
--- a/common/src/main/kotlin/space/mori/chzzk_bot/common/events/ChzzkUserFindEvent.kt
+++ b/common/src/main/kotlin/space/mori/chzzk_bot/common/events/ChzzkUserFindEvent.kt
@@ -1,7 +0,0 @@
-package space.mori.chzzk_bot.common.events
-
-data class ChzzkUserFindEvent(
-    val uid: String
-): Event {
-    val TAG = javaClass.simpleName
-}
--- a/common/src/main/kotlin/space/mori/chzzk_bot/common/events/ChzzkUserReceiveEvent.kt
+++ b/common/src/main/kotlin/space/mori/chzzk_bot/common/events/ChzzkUserReceiveEvent.kt
@@ -1,11 +0,0 @@
-package space.mori.chzzk_bot.common.events
-
-data class ChzzkUserReceiveEvent(
-    val find: Boolean = true,
-    val uid: String? = null,
-    val nickname: String? = null,
-    val isStreamOn: Boolean? = null,
-    val avatarUrl: String? = null,
-): Event {
-    val TAG = javaClass.simpleName
-}
--- a/common/src/main/kotlin/space/mori/chzzk_bot/common/events/TimerEvents.kt
+++ b/common/src/main/kotlin/space/mori/chzzk_bot/common/events/TimerEvents.kt
@@ -5,8 +5,7 @@ enum class TimerType(var value: Int) {
    TIMER(1),
    REMOVE(2),

-    STREAM_OFF(50),
-    ACK(51)
+    STREAM_OFF(50)
 }

 class TimerEvent(
--- a/common/src/main/kotlin/space/mori/chzzk_bot/common/utils/ChzzkApis.kt
+++ b/common/src/main/kotlin/space/mori/chzzk_bot/common/utils/ChzzkApis.kt
@@ -52,18 +52,47 @@ data class NicknameColor(
    val colorCode: String = ""
 )

-data class LiveStatus(
-    val liveTitle: String,
-    val status: String,
-    val concurrentUserCount: Int,
-    val accumulateCount: Int,
-    val paidPromotion: Boolean,
-    val adult: Boolean,
-    val krOnlyViewing: Boolean,
-    val openDate: String,
-    val closeDate: String?,
-    val clipActive: Boolean,
-    val chatChannelId: String
+// Stream info
+data class IStreamInfo(
+    val liveId: Int = 0,
+    val liveTitle: String = "",
+    val status: String = "",
+    val liveImageUrl: String = "",
+    val defaultThumbnailImageUrl: String? = null,
+    val concurrentUserCount: Int = 0,
+    val accumulateCount: Int = 0,
+    val openDate: String = "",
+    val closeDate: String = "",
+    val adult: Boolean = false,
+    val clipActive: Boolean = false,
+    val tags: List<String> = emptyList(),
+    val chatChannelId: String = "",
+    val categoryType: String = "",
+    val liveCategory: String = "",
+    val liveCategoryValue: String = "",
+    val chatActive: Boolean = true,
+    val chatAvailableGroup: String = "",
+    val paidPromotion: Boolean = false,
+    val chatAvailableCondition: String = "",
+    val minFollowerMinute: Int = 0,
+    val livePlaybackJson: String = "",
+    val p2pQuality: List<Any> = emptyList(),
+    val channel: Channel = Channel(),
+    val livePollingStatusJson: String = "",
+    val userAdultStatus: String? = null,
+    val chatDonationRankingExposure: Boolean = true,
+    val adParameter: AdParameter = AdParameter()
+)
+
+data class Channel(
+    val channelId: String = "",
+    val channelName: String = "",
+    val channelImageUrl: String = "",
+    val verifiedMark: Boolean = false
+)
+
+data class AdParameter(
+    val tag: String = ""
 )

 // OkHttpClient에 Interceptor 추가
@@ -99,23 +128,40 @@ fun getFollowDate(chatID: String, userId: String) : IData<IFollowContent?> {
    }
 }

-fun getChzzkChannelId(channelId: String): String? {
-    val url = "https://api.chzzk.naver.com/polling/v3/channels/$channelId/live-status?includePlayerRecommendContent=false"
+fun getStreamInfo(userId: String) : IData<IStreamInfo?> {
+    val url = "https://api.chzzk.naver.com/service/v3/channels/${userId}/live-detail"
    val request = Request.Builder()
        .url(url)
-        .header("Content-Type", "application/json")
-        .get()
        .build()

    client.newCall(request).execute().use { response ->
        try {
            if(!response.isSuccessful) throw IOException("Unexpected code ${response.code}")
            val body = response.body?.string()
-            val data = gson.fromJson(body, object: TypeToken<IData<LiveStatus?>>() {})
+            val follow = gson.fromJson(body, object: TypeToken<IData<IStreamInfo?>>() {})

-            return data.content?.chatChannelId
+            return follow
        } catch(e: Exception) {
            throw e
        }
    }
-}
+}
+
+fun getUserInfo(userId: String): IData<Channel?> {
+    val url = "https://api.chzzk.naver.com/service/v1/channels/${userId}"
+    val request = Request.Builder()
+        .url(url)
+        .build()
+
+    client.newCall(request).execute().use { response ->
+        try {
+            if(!response.isSuccessful) throw IOException("Unexpected code ${response.code}")
+            val body = response.body?.string()
+            val channel = gson.fromJson(body, object: TypeToken<IData<Channel?>>() {})
+
+            return channel
+        } catch(e: Exception) {
+            throw e
+        }
+    }
+}
--- a/webserver/build.gradle.kts
+++ b/webserver/build.gradle.kts
@@ -10,7 +10,7 @@ repositories {
    mavenCentral()
 }

-val ktorVersion = "3.1.3"
+val ktorVersion = "3.0.1"

 dependencies {
    implementation("io.ktor:ktor-server-core:$ktorVersion")
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/Main.kt
@@ -22,16 +22,13 @@ import io.ktor.server.websocket.*
 import kotlinx.coroutines.delay
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
-import org.koin.java.KoinJavaComponent.inject
-import space.mori.chzzk_bot.common.events.CoroutinesEventBus
-import space.mori.chzzk_bot.common.events.UserRegisterEvent
 import space.mori.chzzk_bot.common.services.UserService
 import space.mori.chzzk_bot.webserver.routes.*
 import space.mori.chzzk_bot.webserver.utils.DiscordRatelimits
+import wsSongListRoutes
 import java.math.BigInteger
 import java.security.SecureRandom
 import java.time.Duration
-import kotlin.getValue
 import kotlin.time.toKotlinDuration

 val dotenv = dotenv {
@@ -85,8 +82,6 @@ val server = embeddedServer(Netty, port = 8080, ) {
        }
    }
    routing {
-        val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
-
        route("/auth") {
            // discord login
            authenticate("auth-oauth-discord") {
@@ -181,7 +176,7 @@ val server = embeddedServer(Netty, port = 8080, ) {
                        clientSecret = dotenv["NAVER_CLIENT_SECRET"]
                    )

-                    val response = applicationHttpClient.post("https://openapi.chzzk.naver.com/auth/v1/token") {
+                    val response = applicationHttpClient.post("https://chzzk.naver.com/auth/v1/token") {
                        contentType(ContentType.Application.Json)
                        setBody(tokenRequest)
                    }
@@ -197,12 +192,7 @@ val server = embeddedServer(Netty, port = 8080, ) {
                    val userInfo = getChzzkUser(tokenResponse.content.accessToken)

                    if(userInfo.content != null) {
-                        var user = UserService.getUser(userInfo.content.channelId)
-
-                        if(user == null) {
-                            user = UserService.saveUser(userInfo.content.channelName , userInfo.content.channelId)
-                        }
-
+                        val user = UserService.getUser(userInfo.content.channelId)
                        call.sessions.set(
                            UserSession(
                                session.state,
@@ -210,13 +200,7 @@ val server = embeddedServer(Netty, port = 8080, ) {
                                listOf()
                            )
                        )
-                        UserService.setRefreshToken(user,
-                            tokenResponse.content.accessToken,
-                            tokenResponse.content.refreshToken ?: ""
-                        )
-
-                        dispatcher.post(UserRegisterEvent(user.token))
-
+                        user?.let { UserService.setRefreshToken(it, tokenResponse.content.accessToken, tokenResponse.content.refreshToken ?: "") }
                        call.respondRedirect(getFrontendURL(""))
                    }
                } catch (e: Exception) {
@@ -444,4 +428,4 @@ suspend fun getChzzkUser(accessToken: String): ChzzkApi<ChzzkMeApi> {

 fun generateSecureRandomState(): String {
    return BigInteger(130, SecureRandom()).toString(32)
-}
+}
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/ApiRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/ApiRoutes.kt
@@ -11,10 +11,7 @@ import space.mori.chzzk_bot.common.events.CoroutinesEventBus
 import space.mori.chzzk_bot.common.services.SongConfigService
 import space.mori.chzzk_bot.common.services.UserService
 import space.mori.chzzk_bot.webserver.UserSession
-import kotlinx.coroutines.CompletableDeferred
-import kotlinx.coroutines.withTimeoutOrNull
-import space.mori.chzzk_bot.common.events.ChzzkUserFindEvent
-import space.mori.chzzk_bot.common.events.ChzzkUserReceiveEvent
+import space.mori.chzzk_bot.webserver.utils.ChzzkUserCache

@Serializable
 data class GetUserDTO(
@@ -39,20 +36,6 @@ data class GetSessionDTO(
 fun Routing.apiRoutes() {
    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)

-    suspend fun getChzzkUserWithId(uid: String): ChzzkUserReceiveEvent? {
-        val completableDeferred = CompletableDeferred<ChzzkUserReceiveEvent>()
-        dispatcher.subscribe(ChzzkUserReceiveEvent::class) { event ->
-            if (event.uid == uid) {
-                completableDeferred.complete(event)
-            }
-        }
-        val user = withTimeoutOrNull(5000) {
-            dispatcher.post(ChzzkUserFindEvent(uid))
-            completableDeferred.await()
-        }
-        return user
-    }
-
    route("/") {
        get {
            call.respondText("Hello World!", status =
@@ -67,21 +50,21 @@ fun Routing.apiRoutes() {

    route("/user/{uid}") {
        get {
-        val uid = call.parameters["uid"]
+            val uid = call.parameters["uid"]
            if(uid == null) {
                call.respondText("Require UID", status = HttpStatusCode.NotFound)
                return@get
            }
-            val user = getChzzkUserWithId(uid)
-            if (user?.find == false) {
+            val user = ChzzkUserCache.getCachedUser(uid)
+            if(user?.content == null) {
                call.respondText("User not found", status = HttpStatusCode.NotFound)
                return@get
            } else {
                call.respond(HttpStatusCode.OK, GetUserDTO(
-                    user?.uid ?: "",
-                    user?.nickname ?: "",
-                    user?.isStreamOn ?: false,
-                    user?.avatarUrl ?: ""
+                    user.content!!.channel.channelId,
+                    user.content!!.channel.channelName,
+                    user.content!!.status == "OPEN",
+                    user.content!!.channel.channelImageUrl
                ))
            }
        }
@@ -99,7 +82,7 @@ fun Routing.apiRoutes() {
                user = UserService.saveUser("임시닉네임", session.id)
            }
            val songConfig = SongConfigService.getConfig(user)
-            val status = getChzzkUserWithId(user.token)
+            val status = ChzzkUserCache.getCachedUser(session.id)
            val returnUsers = mutableListOf<GetSessionDTO>()

            if(status == null) {
@@ -108,14 +91,14 @@ fun Routing.apiRoutes() {
            }

            if (user.username == "임시닉네임") {
-                status.let { stats -> UserService.updateUser(user, stats.uid ?: "", stats.nickname ?: "") }
+                status.content?.channel?.let { it1 -> UserService.updateUser(user, it1.channelId, it1.channelName) }
            }

            returnUsers.add(GetSessionDTO(
-                status.uid ?: user.token,
-                status.nickname ?: user.username,
-                status.isStreamOn == true,
-                status.avatarUrl ?: "",
+                status.content?.channel?.channelId ?: user.username,
+                status.content?.channel?.channelName ?: user.token,
+                status.content?.status == "OPEN",
+                status.content?.channel?.channelImageUrl ?: "",
                songConfig.queueLimit,
                songConfig.personalLimit,
                songConfig.streamerOnly,
@@ -126,15 +109,15 @@ fun Routing.apiRoutes() {
                user.subordinates.toList()
            }
            returnUsers.addAll(subordinates.map {
-                val subStatus = getChzzkUserWithId(it.token)
-                return@map if (subStatus == null) {
+                val subStatus = ChzzkUserCache.getCachedUser(it.token)
+                return@map if (subStatus?.content == null) {
                    null
                } else {
                    GetSessionDTO(
-                        subStatus.uid ?: "",
-                        subStatus.nickname ?: "",
-                        subStatus.isStreamOn == true,
-                        subStatus.avatarUrl ?: "",
+                        subStatus.content!!.channel.channelId,
+                        subStatus.content!!.channel.channelName,
+                        subStatus.content!!.status == "OPEN",
+                        subStatus.content!!.channel.channelImageUrl,
                        0,
                        0,
                        false,
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongListRoutes.kt
@@ -1,54 +1,115 @@
-package space.mori.chzzk_bot.webserver.routes
-
-import io.ktor.client.plugins.websocket.WebSocketException
-import io.ktor.server.application.*
 import io.ktor.server.routing.*
 import io.ktor.server.sessions.*
 import io.ktor.server.websocket.*
+import io.ktor.util.logging.Logger
 import io.ktor.websocket.*
-import kotlinx.coroutines.*
+import io.ktor.websocket.Frame.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.channels.ClosedReceiveChannelException
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import org.koin.java.KoinJavaComponent.inject
-import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.common.events.*
 import space.mori.chzzk_bot.common.models.SongList
+import space.mori.chzzk_bot.common.models.SongLists.uid
 import space.mori.chzzk_bot.common.models.User
+import space.mori.chzzk_bot.common.services.SongConfigService
 import space.mori.chzzk_bot.common.services.SongListService
 import space.mori.chzzk_bot.common.services.UserService
 import space.mori.chzzk_bot.common.utils.YoutubeVideo
 import space.mori.chzzk_bot.common.utils.getYoutubeVideo
 import space.mori.chzzk_bot.webserver.UserSession
+import space.mori.chzzk_bot.webserver.routes.SongResponse
+import space.mori.chzzk_bot.webserver.routes.toSerializable
 import space.mori.chzzk_bot.webserver.utils.CurrentSong
-import java.io.IOException
 import java.util.concurrent.ConcurrentHashMap

 fun Routing.wsSongListRoutes() {
+    val sessions = ConcurrentHashMap<String, WebSocketServerSession>()
+    val status = ConcurrentHashMap<String, SongType>()
    val logger = LoggerFactory.getLogger("WSSongListRoutes")
+
    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
-    val songListScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)

-    // Manage all active sessions
-    val sessionHandlers = ConcurrentHashMap<String, SessionHandler>()
-
-    // Handle application shutdown
-    environment.monitor.subscribe(ApplicationStopped) {
-        sessionHandlers.values.forEach {
-            songListScope.launch {
-                it.close(CloseReason(CloseReason.Codes.NORMAL, "Server shutting down"))
+    fun addSession(uid: String, session: WebSocketServerSession) {
+        if (sessions[uid] != null) {
+            CoroutineScope(Dispatchers.Default).launch {
+                sessions[uid]?.close(
+                    CloseReason(CloseReason.Codes.VIOLATED_POLICY, "Duplicated sessions.")
+                )
            }
        }
+        sessions[uid] = session
+    }
+
+    fun removeSession(uid: String) {
+        sessions.remove(uid)
+    }
+
+    suspend fun waitForAck(ws: WebSocketServerSession, expectedType: Int): Boolean {
+        val timeout = 5000L // 5 seconds timeout
+        val startTime = System.currentTimeMillis()
+        while (System.currentTimeMillis() - startTime < timeout) {
+            for (frame in ws.incoming) {
+                if (frame is Text) {
+                    val message = frame.readText()
+                    if(message == "ping") {
+                        return true
+                    }
+                    val data = Json.decodeFromString<SongRequest>(message)
+                    if (data.type == SongType.ACK.value) {
+                        return true // ACK received
+                    }
+                }
+            }
+            delay(100) // Check every 100 ms
+        }
+        return false // Timeout
+    }
+
+    suspend fun sendWithRetry(uid: String, res: SongResponse, maxRetries: Int = 5, delayMillis: Long = 3000L) {
+        var attempt = 0
+        var sentSuccessfully = false
+
+        while (attempt < maxRetries && !sentSuccessfully) {
+            val ws = sessions[uid]
+            try {
+                if(ws == null) {
+                    delay(delayMillis)
+                    continue
+                }
+                // Attempt to send the message
+                ws.sendSerialized(res)
+                logger.debug("Message sent successfully to $uid on attempt $attempt")
+                // Wait for ACK
+                val ackReceived = waitForAck(ws, res.type)
+                if (ackReceived == true) {
+                    sentSuccessfully = true
+                } else {
+                    logger.warn("ACK not received for message to $uid on attempt $attempt.")
+                }
+            } catch (e: Exception) {
+                attempt++
+                logger.warn("Failed to send message to $uid on attempt $attempt. Retrying in $delayMillis ms.")
+                logger.warn(e.stackTraceToString())
+            } finally {
+                // Wait before retrying
+                delay(delayMillis)
+            }
+        }
+
+        if (!sentSuccessfully) {
+            logger.error("Failed to send message to $uid after $maxRetries attempts.")
+        }
    }

-    // WebSocket endpoint
    webSocket("/songlist") {
        val session = call.sessions.get<UserSession>()
-        val user: User? = session?.id?.let { UserService.getUser(it) }
-
+        val user = session?.id?.let { UserService.getUser(it) }
        if (user == null) {
            close(CloseReason(CloseReason.Codes.CANNOT_ACCEPT, "Invalid SID"))
            return@webSocket
@@ -56,291 +117,175 @@ fun Routing.wsSongListRoutes() {

        val uid = user.token

-        // Ensure only one session per user
-        sessionHandlers[uid]?.close(CloseReason(CloseReason.Codes.VIOLATED_POLICY, "Another session is already active."))
+        addSession(uid, this)

-        val handler = SessionHandler(uid, this, dispatcher, logger)
-        sessionHandlers[uid] = handler
+        if (status[uid] == SongType.STREAM_OFF) {
+            CoroutineScope(Dispatchers.Default).launch {
+                sendSerialized(SongResponse(
+                    SongType.STREAM_OFF.value,
+                    uid,
+                    null,
+                    null,
+                    null,
+                ))
+            }
+            removeSession(uid)
+        }

-        // Initialize session
-        handler.initialize()
-
-        // Listen for incoming frames
        try {
            for (frame in incoming) {
                when (frame) {
-                    is Frame.Text -> handler.handleTextFrame(frame.readText())
-                    is Frame.Ping -> send(Frame.Pong(frame.data))
-                    else -> Unit
+                    is Text -> {
+                        if (frame.readText().trim() == "ping") {
+                            send("pong")
+                        } else {
+                            val data = frame.readText().let { Json.decodeFromString<SongRequest>(it) }
+
+                            // Handle song requests
+                            handleSongRequest(data, user, dispatcher, logger)
+                        }
+                    }
+                    is Ping -> send(Pong(frame.data))
+                    else -> ""
                }
            }
        } catch (e: ClosedReceiveChannelException) {
-            logger.info("Session closed: ${e.message}")
-        } catch (e: IOException) {
-            logger.error("IO error: ${e.message}")
-        } catch (e: Exception) {
-            logger.error("Unexpected error: ${e.message}")
+            logger.error("Error in WebSocket: ${e.message}")
        } finally {
-            sessionHandlers.remove(uid)
-            handler.close(CloseReason(CloseReason.Codes.NORMAL, "Session ended"))
+            removeSession(uid)
        }
    }

-    // Subscribe to SongEvents
-    dispatcher.subscribe(SongEvent::class) { event ->
-        val handler = sessionHandlers[event.uid]
-        songListScope.launch {
-            handler?.sendSongResponse(event)
+    dispatcher.subscribe(SongEvent::class) {
+        logger.debug("SongEvent: {} / {} {}", it.uid, it.type, it.current?.name)
+        CoroutineScope(Dispatchers.Default).launch {
+            val user = UserService.getUser(it.uid)
+            if (user != null) {
+                sendWithRetry(
+                    user.token, SongResponse(
+                        it.type.value,
+                        it.uid,
+                        it.reqUid,
+                        it.current?.toSerializable(),
+                        it.next?.toSerializable(),
+                        it.delUrl
+                    )
+                )
+            }
        }
    }

-    // Subscribe to TimerEvents
-    dispatcher.subscribe(TimerEvent::class) { event ->
-        if (event.type == TimerType.STREAM_OFF) {
-            val handler = sessionHandlers[event.uid]
-            songListScope.launch {
-                handler?.sendTimerOff()
+    dispatcher.subscribe(TimerEvent::class) {
+        if (it.type == TimerType.STREAM_OFF) {
+            CoroutineScope(Dispatchers.Default).launch {
+                val user = UserService.getUser(it.uid)
+                if (user != null) {
+                    sendWithRetry(
+                        user.token, SongResponse(
+                            it.type.value,
+                            it.uid,
+                            null,
+                            null,
+                            null,
+                        )
+                    )
+                }
            }
        }
    }
 }

-class SessionHandler(
-    private val uid: String,
-    private val session: WebSocketServerSession,
-    private val dispatcher: CoroutinesEventBus,
-    private val logger: Logger
+suspend fun handleSongRequest(
+    data: SongRequest,
+    user: User,
+    dispatcher: CoroutinesEventBus,
+    logger: Logger
 ) {
-    private val ackMap = ConcurrentHashMap<String, CompletableDeferred<Boolean>>()
-    private val sessionMutex = Mutex()
-    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
+    if (data.maxQueue != null && data.maxQueue > 0) SongConfigService.updateQueueLimit(user, data.maxQueue)
+    if (data.maxUserLimit != null && data.maxUserLimit > 0) SongConfigService.updatePersonalLimit(user, data.maxUserLimit)
+    if (data.isStreamerOnly != null) SongConfigService.updateStreamerOnly(user, data.isStreamerOnly)
+    if (data.isDisabled != null) SongConfigService.updateDisabled(user, data.isDisabled)

-    suspend fun initialize() {
-        // Send initial status if needed,
-        // For example, send STREAM_OFF if applicable
-        // This can be extended based on your requirements
-    }
-
-    suspend fun handleTextFrame(text: String) {
-        if (text.trim() == "ping") {
-            session.send("pong")
-            return
-        }
-
-        val data = try {
-            Json.decodeFromString<SongRequest>(text)
-        } catch (e: Exception) {
-            logger.warn("Failed to decode SongRequest: ${e.message}")
-            return
-        }
-
-        when (data.type) {
-            SongType.ACK.value -> handleAck(data.uid)
-            else -> handleSongRequest(data)
-        }
-    }
-
-    private fun handleAck(requestUid: String) {
-        ackMap[requestUid]?.complete(true)
-        ackMap.remove(requestUid)
-    }
-
-    private fun handleSongRequest(data: SongRequest) {
-        scope.launch {
-            SongRequestProcessor.process(data, uid, dispatcher, this@SessionHandler, logger)
-        }
-    }
-
-    suspend fun sendSongResponse(event: SongEvent) {
-        val response = SongResponse(
-            type = event.type.value,
-            uid = event.uid,
-            reqUid = event.reqUid,
-            current = event.current?.toSerializable(),
-            next = event.next?.toSerializable(),
-            delUrl = event.delUrl
-        )
-        sendWithRetry(response)
-    }
-
-    suspend fun sendTimerOff() {
-        val response = SongResponse(
-            type = TimerType.STREAM_OFF.value,
-            uid = uid,
-            reqUid = null,
-            current = null,
-            next = null,
-            delUrl = null
-        )
-        sendWithRetry(response)
-    }
-
-    private suspend fun sendWithRetry(res: SongResponse, maxRetries: Int = 5, delayMillis: Long = 3000L) {
-        var attempt = 0
-        while (attempt < maxRetries) {
-            try {
-                session.sendSerialized(res)
-                val ackDeferred = CompletableDeferred<Boolean>()
-                ackMap[res.uid] = ackDeferred
-
-                val ackReceived = withTimeoutOrNull(5000L) { ackDeferred.await() } ?: false
-                if (ackReceived) {
-                    logger.debug("ACK received for message to $uid on attempt $attempt.")
-                    return
-                } else {
-                    logger.warn("ACK not received for message to $uid on attempt $attempt.")
+    when (data.type) {
+        SongType.ADD.value -> {
+            data.url?.let { url ->
+                try {
+                    val youtubeVideo = getYoutubeVideo(url)
+                    if (youtubeVideo != null) {
+                        CoroutineScope(Dispatchers.Default).launch {
+                            SongListService.saveSong(
+                                user,
+                                user.token,
+                                url,
+                                youtubeVideo.name,
+                                youtubeVideo.author,
+                                youtubeVideo.length,
+                                user.username
+                            )
+                            dispatcher.post(
+                                SongEvent(
+                                    user.token,
+                                    SongType.ADD,
+                                    user.token,
+                                    CurrentSong.getSong(user),
+                                    youtubeVideo
+                                )
+                            )
+                        }
+                    }
+                } catch (e: Exception) {
+                    logger.debug("SongType.ADD Error: $uid $e")
                }
-            } catch (e: IOException) {
-                logger.warn("Failed to send message to $uid on attempt $attempt: ${e.message}")
-                if (e is WebSocketException) {
-                    close(CloseReason(CloseReason.Codes.PROTOCOL_ERROR, "WebSocket error"))
-                    return
+            }
+        }
+        SongType.REMOVE.value -> {
+            data.url?.let { url ->
+                val songs = SongListService.getSong(user)
+                val exactSong = songs.firstOrNull { it.url == url }
+                if (exactSong != null) {
+                    SongListService.deleteSong(user, exactSong.uid, exactSong.name)
                }
-            } catch (e: CancellationException) {
-                throw e
-            } catch (e: Exception) {
-                logger.warn("Unexpected error while sending message to $uid on attempt $attempt: ${e.message}")
-            }
-
-            attempt++
-            delay(delayMillis)
-        }
-
-        logger.error("Failed to send message to $uid after $maxRetries attempts.")
-    }
-
-    suspend fun close(reason: CloseReason) {
-        try {
-            session.close(reason)
-        } catch (e: Exception) {
-            logger.warn("Error closing session: ${e.message}")
-        }
-    }
-}
-
-object SongRequestProcessor {
-    private val songMutex = Mutex()
-
-    suspend fun process(
-        data: SongRequest,
-        uid: String,
-        dispatcher: CoroutinesEventBus,
-        handler: SessionHandler,
-        logger: Logger
-    ) {
-        val user = UserService.getUser(uid) ?: return
-
-        when (data.type) {
-            SongType.ADD.value -> handleAdd(data, user, dispatcher, handler, logger)
-            SongType.REMOVE.value -> handleRemove(data, user, dispatcher, logger)
-            SongType.NEXT.value -> handleNext(user, dispatcher, logger)
-            else -> {
-                // Handle other types if necessary
+                dispatcher.post(
+                    SongEvent(
+                        user.token,
+                        SongType.REMOVE,
+                        null,
+                        null,
+                        null,
+                        url
+                    )
+                )
            }
        }
-    }
-
-    private suspend fun handleAdd(
-        data: SongRequest,
-        user: User,
-        dispatcher: CoroutinesEventBus,
-        handler: SessionHandler,
-        logger: Logger
-    ) {
-        val url = data.url ?: return
-        val youtubeVideo = getYoutubeVideo(url) ?: run {
-            logger.warn("Failed to fetch YouTube video for URL: $url")
-            return
-        }
-
-        songMutex.withLock {
-            SongListService.saveSong(
-                user,
-                user.token,
-                url,
-                youtubeVideo.name,
-                youtubeVideo.author,
-                youtubeVideo.length,
-                user.username
-            )
-        }
-
-        dispatcher.post(
-            SongEvent(
-                uid = user.token,
-                type = SongType.ADD,
-                reqUid = user.token,
-                current = CurrentSong.getSong(user),
-                next = youtubeVideo
-            )
-        )
-    }
-
-    private suspend fun handleRemove(
-        data: SongRequest,
-        user: User,
-        dispatcher: CoroutinesEventBus,
-        logger: Logger
-    ) {
-        val url = data.url ?: return
-
-        songMutex.withLock {
-            val songs = SongListService.getSong(user)
-            val exactSong = songs.firstOrNull { it.url == url }
-            if (exactSong != null) {
-                SongListService.deleteSong(user, exactSong.uid, exactSong.name)
-            }
-        }
-
-        dispatcher.post(
-            SongEvent(
-                uid = user.token,
-                type = SongType.REMOVE,
-                delUrl = url,
-                reqUid = null,
-                current = null,
-                next = null,
-            )
-        )
-    }
-
-    private suspend fun handleNext(
-        user: User,
-        dispatcher: CoroutinesEventBus,
-        logger: Logger
-    ) {
-        var song: SongList? = null
-        var youtubeVideo: YoutubeVideo? = null
-
-        songMutex.withLock {
+        SongType.NEXT.value -> {
            val songList = SongListService.getSong(user)
+            var song: SongList? = null
+            var youtubeVideo: YoutubeVideo? = null
+
            if (songList.isNotEmpty()) {
                song = songList[0]
                SongListService.deleteSong(user, song.uid, song.name)
            }
-        }

-        song?.let {
-            youtubeVideo = YoutubeVideo(
-                it.url,
-                it.name,
-                it.author,
-                it.time
+            song?.let {
+                youtubeVideo = YoutubeVideo(
+                    song.url,
+                    song.name,
+                    song.author,
+                    song.time
+                )
+            }
+            dispatcher.post(
+                SongEvent(
+                    user.token,
+                    SongType.NEXT,
+                    song?.uid,
+                    youtubeVideo
+                )
            )
+
+            CurrentSong.setSong(user, youtubeVideo)
        }
-
-        dispatcher.post(
-            SongEvent(
-                uid = user.token,
-                type = SongType.NEXT,
-                current = null,
-                next = youtubeVideo,
-                reqUid = null,
-                delUrl = null
-            )
-        )
-
-        CurrentSong.setSong(user, youtubeVideo)
    }
 }

@@ -348,10 +293,10 @@ object SongRequestProcessor {
 data class SongRequest(
    val type: Int,
    val uid: String,
-    val url: String? = null,
-    val maxQueue: Int? = null,
-    val maxUserLimit: Int? = null,
-    val isStreamerOnly: Boolean? = null,
-    val remove: Int? = null,
-    val isDisabled: Boolean? = null
+    val url: String?,
+    val maxQueue: Int?,
+    val maxUserLimit: Int?,
+    val isStreamerOnly: Boolean?,
+    val remove: Int?,
+    val isDisabled: Boolean?,
 )
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSSongRoutes.kt
@@ -1,20 +1,14 @@
 package space.mori.chzzk_bot.webserver.routes

-import io.ktor.server.application.ApplicationStopped
 import io.ktor.server.routing.*
 import io.ktor.server.websocket.*
 import io.ktor.websocket.*
-import kotlinx.coroutines.CompletableDeferred
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.cancel
 import kotlinx.coroutines.channels.ClosedReceiveChannelException
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withTimeoutOrNull
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.Json
 import org.koin.java.KoinJavaComponent.inject
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.common.events.*
@@ -23,16 +17,10 @@ import space.mori.chzzk_bot.common.utils.YoutubeVideo
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.ConcurrentLinkedQueue

-val songScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
 fun Routing.wsSongRoutes() {
-    environment.monitor.subscribe(ApplicationStopped) {
-        songScope.cancel()
-    }
    val sessions = ConcurrentHashMap<String, ConcurrentLinkedQueue<WebSocketServerSession>>()
    val status = ConcurrentHashMap<String, SongType>()
    val logger = LoggerFactory.getLogger("WSSongRoutes")
-    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
-    val ackMap = ConcurrentHashMap<String, ConcurrentHashMap<WebSocketServerSession, CompletableDeferred<Boolean>>>()

    fun addSession(uid: String, session: WebSocketServerSession) {
        sessions.computeIfAbsent(uid) { ConcurrentLinkedQueue() }.add(session)
@@ -40,7 +28,7 @@ fun Routing.wsSongRoutes() {

    fun removeSession(uid: String, session: WebSocketServerSession) {
        sessions[uid]?.remove(session)
-        if (sessions[uid]?.isEmpty() == true) {
+        if(sessions[uid]?.isEmpty() == true) {
            sessions.remove(uid)
        }
    }
@@ -54,141 +42,104 @@ fun Routing.wsSongRoutes() {
        var attempt = 0
        while (attempt < maxRetries) {
            try {
-                session.sendSerialized(message)
-                val ackDeferred = CompletableDeferred<Boolean>()
-                ackMap.computeIfAbsent(message.uid) { ConcurrentHashMap() }[session] = ackDeferred
-                val ackReceived = withTimeoutOrNull(delayMillis) { ackDeferred.await() } ?: false
-                if (ackReceived) {
-                    ackMap[message.uid]?.remove(session)
-                    return true
-                } else {
-                    attempt++
-                    logger.warn("ACK not received for message to ${message.uid} on attempt $attempt.")
-                }
+                session.sendSerialized(message)  // 메시지 전송 시도
+                return true  // 성공하면 true 반환
            } catch (e: Exception) {
                attempt++
                logger.info("Failed to send message on attempt $attempt. Retrying in $delayMillis ms.")
                e.printStackTrace()
-                delay(delayMillis)
+                delay(delayMillis)  // 재시도 전 대기
            }
        }
-        return false
+        return false  // 재시도 실패 시 false 반환
    }

    fun broadcastMessage(userId: String, message: SongResponse) {
        val userSessions = sessions[userId]
+
        userSessions?.forEach { session ->
-            songScope.launch {
+            CoroutineScope(Dispatchers.Default).launch {
                val success = sendWithRetry(session, message)
                if (!success) {
-                    logger.info("Removing session for user $userId due to repeated failures.")
-                    removeSession(userId, session)
+                    println("Removing session for user $userId due to repeated failures.")
+                    userSessions.remove(session)  // 실패 시 세션 제거
                }
            }
        }
    }

    webSocket("/song/{uid}") {
-        logger.info("WebSocket connection attempt received")
        val uid = call.parameters["uid"]
        val user = uid?.let { UserService.getUser(it) }
-        if (uid == null || user == null) {
-            logger.warn("Invalid UID: $uid")
+        if (uid == null) {
            close(CloseReason(CloseReason.Codes.CANNOT_ACCEPT, "Invalid UID"))
            return@webSocket
        }
+        if (user == null) {
+            close(CloseReason(CloseReason.Codes.CANNOT_ACCEPT, "Invalid UID"))
+            return@webSocket
+        }
+
+        addSession(uid, this)
+
+        if(status[uid] == SongType.STREAM_OFF) {
+            CoroutineScope(Dispatchers.Default).launch {
+                sendSerialized(SongResponse(
+                    SongType.STREAM_OFF.value,
+                    uid,
+                    null,
+                    null,
+                    null,
+                ))
+            }
+        }
+
        try {
-            addSession(uid, this)
-            logger.info("WebSocket connection established for user: $uid")
-
-            // Start heartbeat
-            val heartbeatJob = songScope.launch {
-                while (true) {
-                    try {
-                        send(Frame.Ping(ByteArray(0)))
-                        delay(30000) // 30 seconds
-                    } catch (e: Exception) {
-                        logger.error("Heartbeat failed for user $uid", e)
-                        break
-                    }
-                }
-            }
-
-            if (status[uid] == SongType.STREAM_OFF) {
-                songScope.launch {
-                    sendSerialized(
-                        SongResponse(
-                            SongType.STREAM_OFF.value,
-                            uid,
-                            null,
-                            null,
-                            null,
-                        )
-                    )
-                }
-            }
-            try {
-                for (frame in incoming) {
-                    when (frame) {
-                        is Frame.Text -> {
-                            val text = frame.readText().trim()
-                            if (text == "ping") {
-                                send("pong")
-                            } else {
-                                val data = Json.decodeFromString<SongRequest>(text)
-                                if (data.type == SongType.ACK.value) {
-                                    ackMap[data.uid]?.get(this)?.complete(true)
-                                    ackMap[data.uid]?.remove(this)
-                                }
-                            }
+            for (frame in incoming) {
+                when(frame) {
+                    is Frame.Text -> {
+                        if(frame.readText().trim() == "ping") {
+                            send("pong")
                        }
+                    }
+                    is Frame.Ping -> send(Frame.Pong(frame.data))
+                    else -> {

-                        is Frame.Ping -> send(Frame.Pong(frame.data))
-                        else -> {}
                    }
                }
-            } catch (e: ClosedReceiveChannelException) {
-                logger.error("WebSocket connection closed for user $uid: ${e.message}")
-            } catch (e: Exception) {
-                logger.error("Unexpected error in WebSocket for user $uid", e)
-            } finally {
-                logger.info("Cleaning up WebSocket connection for user $uid")
-                removeSession(uid, this)
-                ackMap[uid]?.remove(this)
-                heartbeatJob.cancel()
            }
-        } catch(e: Exception) {
-            logger.error("Unexpected error in WebSocket for user $uid", e)
+        } catch(e: ClosedReceiveChannelException) {
+            logger.error("Error in WebSocket: ${e.message}")
+        } finally {
+            removeSession(uid, this)
        }
    }

+    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
+
    dispatcher.subscribe(SongEvent::class) {
        logger.debug("SongEvent: {} / {} {}", it.uid, it.type, it.current?.name)
-        songScope.launch {
-            broadcastMessage(
-                it.uid, SongResponse(
-                    it.type.value,
-                    it.uid,
-                    it.reqUid,
-                    it.current?.toSerializable(),
-                    it.next?.toSerializable(),
-                    it.delUrl
-                )
-            )
+        CoroutineScope(Dispatchers.Default).launch {
+            broadcastMessage(it.uid, SongResponse(
+                it.type.value,
+                it.uid,
+                it.reqUid,
+                it.current?.toSerializable(),
+                it.next?.toSerializable(),
+                it.delUrl
+            ))
        }
    }
    dispatcher.subscribe(TimerEvent::class) {
-        if (it.type == TimerType.STREAM_OFF) {
-            songScope.launch {
-                broadcastMessage(
-                    it.uid, SongResponse(
-                        it.type.value,
-                        it.uid,
-                        null,
-                        null,
-                        null,
-                    )
-                )
+        if(it.type == TimerType.STREAM_OFF) {
+            CoroutineScope(Dispatchers.Default).launch {
+                broadcastMessage(it.uid, SongResponse(
+                    it.type.value,
+                    it.uid,
+                    null,
+                    null,
+                    null,
+                ))
            }
        }
    }
@@ -201,7 +152,9 @@ data class SerializableYoutubeVideo(
    val author: String,
    val length: Int
 )
+
 fun YoutubeVideo.toSerializable() = SerializableYoutubeVideo(url, name, author, length)
+
@Serializable
 data class SongResponse(
    val type: Int,
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/routes/WSTimerRoutes.kt
@@ -1,20 +1,13 @@
 package space.mori.chzzk_bot.webserver.routes

-import io.ktor.server.application.ApplicationStopped
 import io.ktor.server.routing.*
 import io.ktor.server.websocket.*
 import io.ktor.websocket.*
-import kotlinx.coroutines.CompletableDeferred
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.SupervisorJob
-import kotlinx.coroutines.cancel
 import kotlinx.coroutines.channels.ClosedReceiveChannelException
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withTimeoutOrNull
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.json.Json
 import org.koin.java.KoinJavaComponent.inject
 import org.slf4j.LoggerFactory
 import space.mori.chzzk_bot.common.events.*
@@ -24,19 +17,14 @@ import space.mori.chzzk_bot.webserver.utils.CurrentTimer
 import java.util.concurrent.ConcurrentHashMap
 import java.util.concurrent.ConcurrentLinkedQueue

-val timerScope = CoroutineScope(SupervisorJob() + Dispatchers.Default)
 fun Routing.wsTimerRoutes() {
-    environment.monitor.subscribe(ApplicationStopped) {
-        timerScope.cancel()
-    }
    val sessions = ConcurrentHashMap<String, ConcurrentLinkedQueue<WebSocketServerSession>>()
    val logger = LoggerFactory.getLogger("WSTimerRoutes")
-    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
-    val ackMap = ConcurrentHashMap<String, ConcurrentHashMap<WebSocketServerSession, CompletableDeferred<Boolean>>>()

    fun addSession(uid: String, session: WebSocketServerSession) {
        sessions.computeIfAbsent(uid) { ConcurrentLinkedQueue() }.add(session)
    }
+
    fun removeSession(uid: String, session: WebSocketServerSession) {
        sessions[uid]?.remove(session)
        if(sessions[uid]?.isEmpty() == true) {
@@ -44,132 +32,82 @@ fun Routing.wsTimerRoutes() {
        }
    }

-    suspend fun sendWithRetry(
-        session: WebSocketServerSession,
-        message: TimerResponse,
-        maxRetries: Int = 3,
-        delayMillis: Long = 2000L
-    ): Boolean {
-        var attempt = 0
-        while (attempt < maxRetries) {
-            try {
-                session.sendSerialized(message)
-                val ackDeferred = CompletableDeferred<Boolean>()
-                ackMap.computeIfAbsent(message.uid) { ConcurrentHashMap() }[session] = ackDeferred
-                val ackReceived = withTimeoutOrNull(delayMillis) { ackDeferred.await() } ?: false
-                if (ackReceived) {
-                    ackMap[message.uid]?.remove(session)
-                    return true
-                } else {
-                    attempt++
-                    logger.warn("ACK not received for message to ${message.uid} on attempt $attempt.")
-                }
-            } catch (e: Exception) {
-                attempt++
-                logger.info("Failed to send message on attempt $attempt. Retrying in $delayMillis ms.")
-                e.printStackTrace()
-                delay(delayMillis)
-            }
-        }
-        return false
-    }
-
-    fun broadcastMessage(uid: String, message: TimerResponse) {
-        val userSessions = sessions[uid]
-        userSessions?.forEach { session ->
-            timerScope.launch {
-                val success = sendWithRetry(session, message.copy(uid = uid))
-                if (!success) {
-                    logger.info("Removing session for user $uid due to repeated failures.")
-                    removeSession(uid, session)
-                }
-            }
-        }
-    }
-
    webSocket("/timer/{uid}") {
        val uid = call.parameters["uid"]
        val user = uid?.let { UserService.getUser(it) }
-        if (uid == null || user == null) {
+        if (uid == null) {
            close(CloseReason(CloseReason.Codes.CANNOT_ACCEPT, "Invalid UID"))
            return@webSocket
        }
+        if (user == null) {
+            close(CloseReason(CloseReason.Codes.CANNOT_ACCEPT, "Invalid UID"))
+            return@webSocket
+        }
+
        addSession(uid, this)
        val timer = CurrentTimer.getTimer(user)

-        if (timer?.type == TimerType.STREAM_OFF) {
-            timerScope.launch {
-                sendSerialized(TimerResponse(TimerType.STREAM_OFF.value, null, uid))
+        if(timer?.type == TimerType.STREAM_OFF) {
+            CoroutineScope(Dispatchers.Default).launch {
+                sendSerialized(TimerResponse(TimerType.STREAM_OFF.value, null))
            }
        } else {
-            timerScope.launch {
-                if(timer?.type == TimerType.STREAM_OFF) {
-                    sendSerialized(TimerResponse(TimerType.STREAM_OFF.value, null, uid))
+            CoroutineScope(Dispatchers.Default).launch {
+                if (timer == null) {
+                    sendSerialized(
+                        TimerResponse(
+                            TimerConfigService.getConfig(user)?.option ?: TimerType.REMOVE.value,
+                            null
+                        )
+                    )
                } else {
-                    if (timer == null) {
-                        sendSerialized(
-                            TimerResponse(
-                                TimerConfigService.getConfig(user)?.option ?: TimerType.REMOVE.value,
-                                null,
-                                uid
-                            )
+                    sendSerialized(
+                        TimerResponse(
+                            timer.type.value,
+                            timer.time
                        )
-                    } else {
-                        sendSerialized(
-                            TimerResponse(
-                                timer.type.value,
-                                timer.time,
-                                uid
-                            )
-                        )
-                    }
+                    )
                }
            }
        }
+
        try {
            for (frame in incoming) {
                when(frame) {
                    is Frame.Text -> {
-                        val text = frame.readText().trim()
-                        if(text == "ping") {
+                        if(frame.readText().trim() == "ping") {
                            send("pong")
-                        } else {
-                            val data = Json.decodeFromString<TimerRequest>(text)
-                            if (data.type == TimerType.ACK.value) {
-                                ackMap[data.uid]?.get(this)?.complete(true)
-                                ackMap[data.uid]?.remove(this)
-                            }
                        }
                    }
                    is Frame.Ping -> send(Frame.Pong(frame.data))
-                    else -> {}
+                    else -> {
+
+                    }
                }
            }
        } catch(e: ClosedReceiveChannelException) {
            logger.error("Error in WebSocket: ${e.message}")
        } finally {
            removeSession(uid, this)
-            ackMap[uid]?.remove(this)
        }
    }

+    val dispatcher: CoroutinesEventBus by inject(CoroutinesEventBus::class.java)
+
    dispatcher.subscribe(TimerEvent::class) {
        logger.debug("TimerEvent: {} / {}", it.uid, it.type)
        val user = UserService.getUser(it.uid)
        CurrentTimer.setTimer(user!!, it)
-        timerScope.launch {
-            broadcastMessage(it.uid, TimerResponse(it.type.value, it.time ?: "", it.uid))
+        CoroutineScope(Dispatchers.Default).launch {
+            sessions[it.uid]?.forEach { ws ->
+                ws.sendSerialized(TimerResponse(it.type.value, it.time ?: ""))
+            }
        }
    }
 }
+
@Serializable
 data class TimerResponse(
    val type: Int,
-    val time: String?,
-    val uid: String
-)
-@Serializable
-data class TimerRequest(
-    val type: Int,
-    val uid: String
+    val time: String?
 )
--- a/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/utils/ChzzkUserCache.kt
+++ b/webserver/src/main/kotlin/space/mori/chzzk_bot/webserver/utils/ChzzkUserCache.kt
@@ -0,0 +1,50 @@
+package space.mori.chzzk_bot.webserver.utils
+
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import org.slf4j.LoggerFactory
+import space.mori.chzzk_bot.common.utils.IData
+import space.mori.chzzk_bot.common.utils.IStreamInfo
+import space.mori.chzzk_bot.common.utils.getStreamInfo
+import space.mori.chzzk_bot.common.utils.getUserInfo
+import java.time.Instant
+import java.util.concurrent.ConcurrentHashMap
+
+object ChzzkUserCache {
+    private val cache = ConcurrentHashMap<String, CachedUser>()
+    private const val EXP_SECONDS = 600L
+    private val mutex = Mutex()
+    private val logger = LoggerFactory.getLogger(this::class.java)
+
+    suspend fun getCachedUser(id: String): IData<IStreamInfo?>? {
+        val now = Instant.now()
+        var user = cache[id]
+
+        if(user == null || user.timestamp.plusSeconds(EXP_SECONDS).isBefore(now)) {
+            mutex.withLock {
+                if(user == null || user.timestamp.plusSeconds(EXP_SECONDS)?.isBefore(now) != false) {
+                    var findUser = getStreamInfo(id)
+                    if(findUser.content == null) {
+                        val userInfo = getUserInfo(id)
+
+                        if(userInfo.content == null) return null
+
+                        findUser = IData(200, null, IStreamInfo(
+                            channel = userInfo.content!!
+                        ))
+                    }
+
+                    user = CachedUser(findUser)
+                    user.let { cache[id] = user }
+                }
+            }
+        }
+
+        return cache[id]?.user
+    }
+}
+
+data class CachedUser(
+    val user: IData<IStreamInfo?>,
+    val timestamp: Instant = Instant.now(),
+)